Answer:
E). Had read.
Explanation:
As per the question, option E i.e. 'had read' displays the most appropriate correction of grammatical error in the underlined section. The given sentence fails to follow the correct grammatical structure for the past unreal conditional sentence as it employs the auxiliary verb 'would' with 'have' wrongly. In order to rectify this error, the grammatical structure suggests the use of past perfect in the 'if' clause('had read') in the past unreal conditional sentence. The other options are incorrect as they either uses preposition incorrectly between the auxiliary verb and the main verb(options C and D) or employs 'would or could' falsely in the first clause(options A and B). Thus, <u>option E</u> is the correct answer.
Here you go!
When I was nineteen, I lived in Costa <u>R</u>ica for a few months. This beautiful country is filled with fruits and flowers growing everywhere. The country is also blessed with rain forests, mountains, and inactive volcanoes. One of my favorite memories <u>is</u> of a time I stayed overnight on the beach with some friends. At about midnight, we decided to stand waist-deep in the warm ocean water. A gentle rain began to fall<u>.</u> We could see lightning flashing in the clouds miles away. Suddenly, we all gasped in amazement. Lines of flickering green light were dancing across the tops of the waves <u>a</u>s they rolled toward us. We learned later that the light was caused by tiny glowing animals which live on the ocean<u>'</u>s surface. That night was a magical time for us.
Leave as is is the answer